iPod touch has an all-new design that makes it the thinnest, lightest, most amazing iPod touch ever. Holding one is all the proof you need. With its curved design, iPod touch is now a mere 7.2 millimeters thin. Its engineered glass front and stainless steel back feel sleek and smooth in your hand. Turn it on, and you're instantly blown away by the brilliant Retina display. iPod touch is the perfect combination of stunning design and revolutionary technology - brilliant from the outside in. There are lots of reasons you won't want to take your eyes off the iPod touch. The 960-by-640 backlit LCD display, for one. It packs 326 pixels per inch, making it the highest-resolution iPod screen ever. To achieve this, Apple engineers developed pixels so small - a mere 78 micrometers across - that the human eye can't distinguish individual pixels. Even though you can't see them, you'll definitely notice the difference. Text is remarkably sharp and graphics are incredibly vivid. The Apple A4 chip is behind, or rather underneath, all the fun you can have on iPod touch. Apple engineers designed the A4 chip to be a remarkably powerful yet remarkably power-efficient mobile processor. With it, iPod touch can easily perform complex jobs such as multitasking, editing video, and placing FaceTime calls. All while maximizing battery life. And fun. iPod touch just learned some new moves. It includes a built-in three-axis gyroscope. When paired with the accelerometer, the gyro makes iPod touch capable of advanced motion sensing such as user acceleration, full 3D attitude, and rotation rate. Translation: More motion gestures and greater precision for an even better gaming experience. iPod touch captures video with two built-in cameras. It shoots amazing HD 720p video from the back camera. And with its advanced backside illumination sensor, it captures beautiful footage even in low-light settings. All while the built-in microphone records conversations, music, or any audio at the same time. And on the front of iPod touch, the built-in camera is perfect for making FaceTime calls and shooting self-portraits. It's surprising how much fun can fit into something so small. When you put your finger on iPod touch, how does it just start doing what you want it to do? It's a chain reaction, really. The Multi-Touch display layers a protective shield over a capacitive panel that senses your touch using electrical fields. It then transmits that information to the Retina display below it. So you can glide through albums with Cover Flow, flick through photos and enlarge them with a pinch, zoom in and out on a section of a web page, and control game elements precisely. FaceTime on iPod touch lets you hang out, catch up, and goof off with friends in an entirely new way. With just a tap, you can see what your friends are up to - literally. Witness a prank in action. Or watch your friend on the other side of the country crack up at your stories from last night - iPod touch to iPod touch or iPhone 4 over Wi-Fi. And all you need to get started is an Apple ID and an email account. You can choose an email account you already have or, if you prefer, set up a new one. You'll never see fun the same way again